High severityGHSA Advisory· Published Sep 1, 2020· Updated Sep 23, 2021
Forgeable Public/Private Tokens in jws
CVE-2016-1000223
Description
Affected versions of the jws package allow users to select what algorithm the server will use to verify a provided JWT. A malicious actor can use this behaviour to arbitrarily modify the contents of a JWT while still passing verification. For the common use case of the JWT as a bearer token, the end result is a complete authentication bypass with minimal effort.
Recommendation
Update to version 3.0.0 or later.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
jwsnpm | < 3.0.0 | 3.0.0 |
Affected products
2- Range: < 3.0.0
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-gjcw-v447-2w7qghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2016-1000223ghsaADVISORY
- auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-librariesghsaWEB
- github.com/brianloveswords/node-jws/commit/585d0e1e97b6747c10cf5b7689ccc5618a89b299ghsaWEB
- snyk.io/vuln/npm:jws:20160726ghsaWEB
- www.npmjs.com/advisories/88ghsaWEB
News mentions
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